title: Semi-analytical approach for guided mode resonance in high-index-contrast photonic crystal slab: TE polarization.
abstract: In high-contrast (HC) photonic crystals (PC) slabs, the high-order coupling is so intense that it is indispensable for analyzing the guided mode resonance (GMR) effect. In this paper, a semi-analytical approach is proposed for analyzing GMR in HC PC slabs with TE-like polarization. The intense high-order coupling is included by using a convergent recursive procedure. The reflection of radiative waves at high-index-contrast interfaces is also considered by adopting a strict Green's function for multi-layer structures. Modal properties of interest like band structure, radiation constant, field profile are calculated, agreeing well with numerical finite-difference time-domain simulations. This analysis is promising for the design and optimization of various HC PC devices.
authors.forename: Yi
authors.initials: Y
authors.lastname: Yang
authors.forename: Chao
authors.initials: C
authors.lastname: Peng
authors.forename: Zhengbin
authors.initials: Z
authors.lastname: Li